Route reliability record
ATL→TUL
Atlanta to Tulsa
- Flights
- 1,573
- Period
- September 2025 to August 2026
- Distance
- 674 mi
- Carriers
- 1
This route earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 1,573 ATL to TUL flights, with a median arrival 10 minutes early.
Best time to fly ATL to TUL: a 8am–11am departure, ideally on a Wednesday. Flights in that window arrived on time 91.0% of the time and Wednesday flights 90.9%, against 84.3% for the route overall.
Set against the rest of the country, this route's record is 7 points better than the US average of 77.3%. That gap is worth roughly 70 fewer late arrivals for every thousand flights.
Key figures
On time
84.3%
Arrivals under 15 minutes late, of 1,535 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
2.29%
National rate is 1.89%
Best carrier
Delta
84.3% on time across 1,573 flights
These figures cover 1,573 flights between September 2025 and August 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
Which airline is most reliable on ATL to TUL
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,573 | 84.3% | 72 min | 2.29% | B |
Flight by flight
Flights on ATL to TUL
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 16 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am332 flights91.0%
- 11am–2pm350 flights84.5%
- 2pm–5pm336 flights82.2%
- 5pm–8pm190 flights75.1%
- 8pm–5am365 flights84.6%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 91.0% of the time, against 75.1% for the evening window. That is 16 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 365 flights scheduled in it.
Explore
Filter ATL to TUL by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ATL to TUL, the best departure window is 8am–11am at 91.0% on time and the worst is 5pm–8pm at 75.1%, a wide gap of 15.9 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am—
- 8–11am91.0%
- 11am–2pm84.5%
- 2–5pm82.2%
- 5–8pm75.1%
- 8pm–5am84.6%
best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 14 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 75.9% on time, 14 points below June, the best at 89.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. October was the busiest month here, with 146 flights.
Across the week, Wednesday is the strongest day at 90.9% on time and Sunday the weakest at 79.3%, a spread of 12 points.
Delay causes
Why this route gets delayed
Carrier accounts for 55% of the 17,000 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Carrier
- 29%Late-arriving aircraft
- 12%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 55%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 9,433 of the 17,000 delay minutes reported here. The split is drawn from 17,274 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 91.0% on time here.
Cancellations sit at 2.29% against a national 1.89%, which is ordinary. Diversions add another 0.13%.
Connections and stage length
What a delay here actually costs
6.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 674 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 87.7% on time across 1,573 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.
The sample behind these figures is 1,573 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in TUL after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. June runs 89.5% on time and July 75.9%, a swing of 14 points. If the dates move at all, move them out of July before you think about anything else. 1,535 completed flights over 12 months sit behind that.
Common questions
ATL to TUL questions
How often is ATL to TUL delayed?
About one flight in six arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 15.7% of the 1,573 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
How reliable is ATL to TUL compared with the rest of the country?
84.3% of flights arrive on time here against a national 77.3%, a difference of 7 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on ATL to TUL?
The 8am–11am departure window is the strongest at 91.0% on time. The 5pm–8pm window is the weakest at 75.1%, 16 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on ATL to TUL?
July is the weakest month at 75.9% on time, compared with 89.5% in June. Across the year that is 14 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- TUL to ATL — the return legseparate record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- ATL to LGA, a related route72.3%
- DFW to TUL, a related route73.2%
- ATL to MCO, a related route70.3%
- Delta Air Lines on-time record84.3%
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
Direction matters. ATL to TUL and TUL to ATL are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed ATL to TUL’s on-time badge on your site
Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.